測定対象
地点統一番号 |
水域名 |
地点名 |
環境基準類型 |
01851 |
北上川(3) |
紫波橋 |
A |
測定結果
採取年月日 |
2000.04.17 |
2000.04.26 |
2000.05.08 |
2000.05.24 |
2000.06.07 |
2000.06.19 |
2000.07.12 |
2000.07.24 |
2000.08.01 |
2000.08.01 |
2000.08.01 |
2000.08.01 |
2000.08.23 |
2000.09.05 |
2000.09.20 |
2000.10.04 |
2000.10.17 |
2000.11.08 |
2000.11.28 |
2000.12.06 |
2000.12.13 |
2001.01.10 |
2001.01.24 |
2001.02.07 |
2001.02.21 |
2001.03.01 |
2001.03.14 |
採取時刻 |
0937 |
0936 |
1019 |
0919 |
0951 |
0930 |
0918 |
1007 |
0130 |
0730 |
1330 |
1930 |
0941 |
0950 |
0918 |
1340 |
0910 |
0925 |
0920 |
0925 |
0920 |
1510 |
0920 |
1405 |
0925 |
1440 |
0920 |
天候 |
曇り |
晴れ |
曇り |
雨 |
晴れ |
晴れ |
曇り |
晴れ |
晴れ |
曇り |
晴れ |
曇り |
曇り |
晴れ |
晴れ |
晴れ |
晴れ |
曇り |
晴れ |
雪 |
晴れ |
曇り |
晴れ |
曇り |
晴れ |
曇り |
曇り |
気温 (℃) |
8.5 |
15.2 |
16.6 |
16.0 |
24.4 |
24.4 |
23.2 |
30.6 |
23.6 |
26.2 |
35.2 |
29.8 |
27.7 |
20.9 |
21.0 |
21.4 |
9.8 |
10.9 |
4.1 |
-1.4 |
2.4 |
3.4 |
-1.7 |
1.2 |
-3.4 |
4.8 |
-0.6 |
水温 (℃) |
7.5 |
8.9 |
12.0 |
13.0 |
16.0 |
19.3 |
19.0 |
23.0 |
22.0 |
21.9 |
26.1 |
26.2 |
24.0 |
20.3 |
19.5 |
18.6 |
13.0 |
12.9 |
6.2 |
3.6 |
2.0 |
2.7 |
0.5 |
3.6 |
0.4 |
4.4 |
2.0 |
流量 (m3/s) |
238.14 |
309.78 |
264.58 |
152.41 |
124.34 |
73.82 |
96.88 |
119.41 |
101.87 |
72.39 |
73.82 |
85.73 |
55.11 |
73.82 |
106.99 |
106.99 |
62.80 |
49.10 |
66.82 |
47.93 |
49.10 |
112.23 |
43.42 |
45.65 |
41.25 |
61.48 |
70.98 |
採取水深 (m) |
0.6 |
0.7 |
0.7 |
0.6 |
0.3 |
0.5 |
0.6 |
0.6 |
0.3 |
0.3 |
0.3 |
0.4 |
0.4 |
0.3 |
0.6 |
0.4 |
0.5 |
0.5 |
0.5 |
0.5 |
0.4 |
0.5 |
0.4 |
0.3 |
0.4 |
0.3 |
0.6 |
全水深 (m) |
3.0 |
3.4 |
3.4 |
3.2 |
1.6 |
2.5 |
2.8 |
2.8 |
1.6 |
1.8 |
1.8 |
1.9 |
2.0 |
1.4 |
2.9 |
2.0 |
2.4 |
2.4 |
2.3 |
2.4 |
1.8 |
2.6 |
2.0 |
1.5 |
2.0 |
1.6 |
3.1 |
外観 |
茶色 |
茶色 |
白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
無色澄明 |
白濁 |
無色澄明 |
無色澄明 |
微茶濁 |
無色澄明 |
無色澄明 |
無色澄明 |
微茶濁 |
無色澄明 |
臭気 |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
なし |
pH |
7.2 |
7.0 |
7.0 |
7.1 |
7.1 |
7.4 |
7.5 |
7.6 |
7.3 |
7.3 |
7.7 |
7.5 |
7.3 |
7.4 |
7.4 |
7.8 |
7.5 |
7.4 |
7.4 |
7.5 |
7.4 |
7.5 |
7.4 |
7.6 |
7.5 |
7.9 |
7.5 |
DO (mg/l) |
11.5 |
11.7 |
10.7 |
10.1 |
10.2 |
9.6 |
8.7 |
8.3 |
8.1 |
8.6 |
8.7 |
8.4 |
8.1 |
8.8 |
8.8 |
10.2 |
10.4 |
10.0 |
11.4 |
12.3 |
13.1 |
13.0 |
14.0 |
15.1 |
14.2 |
13.8 |
13.2 |
BOD (mg/l) |
0.6 |
< 0.5 |
0.8 |
0.7 |
1.2 |
1.5 |
0.9 |
0.7 |
0.7 |
0.7 |
0.6 |
1.1 |
1.7 |
1.4 |
0.6 |
1.2 |
1.5 |
1.4 |
1.1 |
0.9 |
0.6 |
2.2 |
1.1 |
1.1 |
1.5 |
1.6 |
1.3 |
COD (mg/l) |
1.5 |
|
2.6 |
|
1.5 |
|
|
2.0 |
|
|
2.0 |
|
|
2.3 |
|
1.9 |
|
2.6 |
|
1.3 |
|
3.4 |
|
1.6 |
|
2.6 |
|
SS (mg/l) |
8 |
12 |
10 |
3 |
3 |
4 |
8 |
8 |
5 |
4 |
5 |
5 |
6 |
5 |
6 |
3 |
2 |
3 |
8 |
2 |
2 |
11 |
2 |
2 |
3 |
7 |
2 |
大腸菌群数 (MPN/100ml) |
2.4E+03 |
4.9E+03 |
7.9E+04 |
7.9E+02 |
3.3E+03 |
1.1E+03 |
3.3E+04 |
1.3E+04 |
4.9E+04 |
1.7E+04 |
4.9E+03 |
1.7E+04 |
4.9E+04 |
4.9E+04 |
4.9E+04 |
4.9E+03 |
2.4E+03 |
4.9E+03 |
7.9E+02 |
7.0E+02 |
4.9E+03 |
2.4E+03 |
7.9E+02 |
7.8E+01 |
4.9E+02 |
4.9E+02 |
7.0E+02 |
全窒素 (mg/l) |
|
|
1.08 |
|
|
|
|
1.39 |
|
|
|
|
|
1.15 |
|
|
|
1.39 |
|
|
|
3.15 |
|
|
|
1.83 |
|
全燐 (mg/l) |
|
|
0.042 |
|
|
|
|
0.036 |
|
|
|
|
|
0.036 |
|
|
|
0.049 |
|
|
|
0.102 |
|
|
|
0.074 |
|
カドミウム (mg/l) |
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
|
< 0.001 |
|
|
< 0.001 |
|
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
全シアン (mg/l) |
N |
|
N |
|
N |
|
|
N |
|
|
N |
|
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
|
N |
|
鉛 (mg/l) |
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
|
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
< 0.005 |
|
六価クロム (mg/l) |
< 0.02 |
|
< 0.02 |
|
< 0.020 |
|
|
< 0.020 |
|
|
< 0.02 |
|
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
< 0.02 |
|
砒素 (mg/l) |
0.001 |
|
< 0.001 |
|
< 0.001 |
|
|
< 0.001 |
|
|
0.001 |
|
|
0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
< 0.001 |
|
総水銀 (mg/l) |
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
< 0.0005 |
|
PCB (mg/l) |
|
|
N |
|
|
|
|
N |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ジクロロメタン (mg/l) |
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
四塩化炭素 (mg/l) |
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
1,2-ジクロロエタン (mg/l) |
|
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
< 0.0004 |
|
|
|
|
|
|
|
|
|
1,1-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
シス-1,2-ジクロロエチレン (mg/l) |
|
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
< 0.004 |
|
|
|
|
|
|
|
|
|
1,1,1-トリクロロエタン (mg/l) |
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
1,1,2-トリクロロエタン (mg/l) |
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
トリクロロエチレン (mg/l) |
|
|
< 0.002 |
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
< 0.002 |
|
|
|
|
|
テトラクロロエチレン (mg/l) |
|
|
< 0.0005 |
|
|
|
|
< 0.0005 |
|
|
|
|
|
|
|
|
|
< 0.0005 |
|
|
|
< 0.0005 |
|
|
|
|
|
1,3-ジクロロプロペン (mg/l) |
|
|
< 0.0002 |
|
|
|
|
|
|
|
< 0.0002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チウラム (mg/l) |
|
|
< 0.0006 |
|
|
|
|
|
|
|
< 0.0006 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
シマジン (mg/l) |
|
|
< 0.0003 |
|
|
|
|
|
|
|
< 0.0003 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
チオベンカルブ (mg/l) |
|
|
< 0.002 |
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
ベンゼン (mg/l) |
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
< 0.001 |
|
|
|
|
|
|
|
|
|
セレン (mg/l) |
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
< 0.002 |
|
|
|
|
|
|
|
|
|
鉄(溶解性) (mg/l) |
|
|
0.1 |
|
|
|
|
0.1 |
|
|
|
|
|
0.2 |
|
|
|
< 0.1 |
|
|
|
< 0.1 |
|
|
|
0.1 |
|
ふっ素 (mg/l) |
|
|
< 0.1 |
|
|
|
|
|
|
|
< 0.1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
アンモニア性窒素 (mg/l) |
|
|
< 0.1 |
|
|
|
|
< 0.1 |
|
|
|
|
|
0.1 |
|
|
|
0.3 |
|
|
|
0.6 |
|
|
|
0.7 |
|
透視度 |
> 30.0 |
30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
> 30.0 |
塩化物イオン (mg/l) |
|
|
4 |
|
|
|
|
7 |
|
|
|
|
|
6 |
|
|
|
8 |
|
|
|
14 |
|
|
|
11 |
|
硫酸イオン (mg/l) |
|
|
11 |
|
|
|
|
17 |
|
|
|
|
|
22 |
|
|
|
20 |
|
|
|
20 |
|
|
|
25 |
|
酸度 (mg/l) |
|
|
3 |
|
|
|
|
3 |
|
|
|
|
|
4 |
|
|
|
4 |
|
|
|
3 |
|
|
|
2 |
|
アルカリ度 (mg/l) |
|
|
17 |
|
|
|
|
27 |
|
|
|
|
|
31 |
|
|
|
32 |
|
|
|
35 |
|
|
|
37 |
|
ほう素 (mg/l) |
|
|
< 0.02 |
|
|
|
|
|
|
|
0.03 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
硝酸性窒素及び亜硝酸性窒素 (mg/l) |
|
|
0.81 |
|
|
|
|
|
|
|
1.33 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|